Las Vegas Is Surrounded by Empty Desert. So Why Is It Running Out of Land?

Las Vegas, Nevada, can only grow where Congress lets it. About nine of every ten acres in Clark County are federal land, and since 1998 the government has been allowed to sell land for building only inside a line Congress drew around the valley. As of mid-2024, about 27,000 acres were left for sale, roughly 40% of the federal land inside that line, according to BLM figures. Auctions have brought in about $3.6 billion, roughly $200,000 for every acre sold. A bill in Congress would add up to 25,000 acres more; its sponsor calls it bipartisan, a Sierra Club leader argued it would encourage sprawl, the Las Vegas Sun reported, and it has only been introduced. Then there's the water: the Southern Nevada Water Authority says about 90% of the valley's water comes from the Colorado River, yet Reclamation's accounting shows Nevada used only about two-thirds of its share in 2025. Chapters: 0:00 Hook 0:56 A state the government owns 1:53 Fifty times bigger 2:25 The line 3:07 Selling the valley 4:25 The water 5:54 The tortoise, and a deadline 6:55 Moving the line 8:22 Close Sources: BLM: SNPLMA page, FAQ (May 2025), Quick Facts (through Jul 1, 2024), disposal-boundary map (Jan 27, 2022; traced, approximate), testimony (Dec 2, 2025) CRS R42346, Federal Land Ownership, Tables 1–2 Clark County federal-lands page; Clark County DCP / MSHCP U.S. Census Bureau counts and estimates; TIGER/cartographic boundaries Bureau of Reclamation: 2025 Colorado River Accounting Report; Lake Mead end-of-month elevations Southern Nevada Water Authority (water source, conservation, 2024 Water Resource Plan) USFWS: 55 FR 12178 (1990); 59 FR 5820 (1994) congress.gov S.1005 / H.R.2134; Pub. L. 105-263; PLAW-119publ91 Sen. Cortez Masto press release (Dec 3, 2025); Las Vegas Sun (Jul 13, 2025) USGS PAD-US 4.1; USGS EROS Earthshots (Las Vegas; Lake Mead); Natural Earth Boundary on screen is our approximate trace of the BLM map; $200,000 per acre is our calculation from BLM totals. What's the hard edge of the city where you live: mountains, water, or a line on a map? Tell us in the comments.